bug#14447: tramp-gvfs.el and xesam.el sometime fail to load

[Stefan Monnier]

>> It ought to always be possible to load lisp libraries.
> I've wrapped the call of `dbus-get-unique-name' by
> `ignore-errors'. tramp-gvfs.el returns now the user error "Package
> `tramp-gvfs' not supported", which is intended.

Not good enough: as Glenn wrote "It ought to always be possible to load
lisp libraries".  They may be loaded for all kinds of reasons that have
nothing to do with using that library.

> xesam.el is obsolete (the XESAM interface is not used anymore by search
> engines). Shouldn't we move xesam.el to "obsolete/"?

Feel free to do it (but even in obsolete/, it should be always possible
to load this library).


        Stefan